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Сравнительные испытания пары трения сталь-полимер

выпускная квалификационная работа бакалавра

Сравнительные испытания пары трения сталь-полимер

Abstract

Данная работа посвящена исследованию трибологических характеристик полимерных материалов в паре трения со сталью. Задачи, которые решались в ходе исследования: 1. Выбрать материалы для исследования; 2. Провести предварительную оценку образцов; 3. Провести испытания образцов на машине трения типа PBD-40; 4. Провести испытания образцов на машине трения типа МТВП; 5. Оценить результаты испытаний на машинах трения с помощью микроскопического исследования; 6. Провести испытания образцов на машине растяжения и определить коэффициент Юнга и Пуассона материалов; 7. Создать математическую модель испытания материала на машине трения типа PBD-40. Были проведены сравнительные испытания на машинах трения по схемам трения верчения и трения скольжения, а также растяжение образцов из ABS, PLA, PLA+, PET-G и цифровое моделирование результатов испытания по схеме трения верчения. В результате были проанализированы полученные данные по всем изучаемым образцам, получены графики зависимостей момента и силы трения от времени, диаграммы растяжения, а также эпюры распределения напряжений и перемещений. На основании проведенных исследований среди изучаемых материалов было решено забраковать PLA и ABS. Наилучшими характеристиками в паре трения со сталью обладает PET-G и PLA+.

This work is devoted to the study of tribological characteristics of polymer materials in a friction pair with steel. Tasks that were solved during the study: 1. Choose materials for research; 2. Conduct a preliminary assessment of samples; 3. To test samples on a PBD-40 type friction machine; 4. To test samples on a friction machine of the MTVP type; 5. To evaluate the results of tests on friction machines using microscopic examination; 6. Test samples on a stretching machine and determine the Youngs and Poissons ratio of materials; 7. Create a mathematical model of material testing on a PBD-40 type friction machine. Comparative tests were carried out on friction machines according to the schemes of spinning friction and sliding friction, as well as stretching of samples from ABS, PLA, PLA+, PET-G and digital modeling of the test results according to the scheme of spinning friction. As a result, the data obtained for all the studied samples were analyzed, graphs of the dependencies of the moment and friction force on time, stretching diagrams, as well as stress and displacement distribution plots were obtained. Based on the conducted research, it was decided to reject PLA and ABS among the studied materials. PET-G and PLA+ have the best characteristics in a friction pair with steel.

Keywords

сила трения, polymer materials, friction force, additive technologies, аддитивные Ñ‚ÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸, PET-G, PLA, friction moment, полимерные материалы, момент трения, ABS

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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